Which laboratory tests are commonly obtained when evaluating suspected upper GI bleed?

Which laboratory tests are commonly obtained when evaluating suspected upper GI bleed?

• A. CBC, CMP, coag results, BUN/Cr
• B. Lipid panel only
• C. Troponin only
• D. CBC and lipid panel

Answer: (B)

When evaluating suspected upper GI bleed, the labs you order first focus on anemia, bleeding risk, and organ function. A complete blood count shows the level of blood loss (hemoglobin/hematocrit) and platelet count, which affects clotting. A comprehensive metabolic panel assesses electrolytes, acid-base status, and kidney function, guiding resuscitation and monitoring. Coagulation studies (INR and aPTT) reveal any clotting abnormalities that could worsen bleeding or influence endoscopy timing. BUN/creatinine helps gauge severity, since digestion of blood in the GI tract can raise BUN. Tests like a lipid panel or troponin don’t address these acute issues, so they’re not routinely part of the initial evaluation for an upper GI bleed.

When evaluating suspected upper GI bleed, the labs you order first focus on anemia, bleeding risk, and organ function. A complete blood count shows the level of blood loss (hemoglobin/hematocrit) and platelet count, which affects clotting. A comprehensive metabolic panel assesses electrolytes, acid-base status, and kidney function, guiding resuscitation and monitoring. Coagulation studies (INR and aPTT) reveal any clotting abnormalities that could worsen bleeding or influence endoscopy timing. BUN/creatinine helps gauge severity, since digestion of blood in the GI tract can raise BUN. Tests like a lipid panel or troponin don’t address these acute issues, so they’re not routinely part of the initial evaluation for an upper GI bleed.